internxt: add support for dir renaming

Author: StarHack

backend/internxt/internxt.go

@@ -274,6 +274,33 @@ func (f *Fs) CreateDir(ctx context.Context, pathID, leaf string) (string, error)
 	return resp.UUID, nil
 }
 
+// DirMove moves a directory src to dst
+func (f *Fs) DirMove(ctx context.Context, src fs.Fs, srcPath, dstPath string) error {
+	if f != src {
+		return fs.ErrorCantDirMove
+	}
+
+	srcID, err := f.dirCache.FindDir(ctx, srcPath, false)
+	if err != nil {
+		return fs.ErrorDirNotFound
+	}
+
+	dstName := filepath.Base(dstPath)
+
+	err = folders.RenameFolder(f.cfg, srcID, f.opt.Encoding.FromStandardName(dstName))
+	if err != nil {
+		return fmt.Errorf("rename failed: %w", err)
+	}
+
+	// Invalidate affected caches
+	f.dirCache.FlushDir(filepath.Dir(srcPath))
+	f.dirCache.FlushDir(filepath.Dir(dstPath))
+	f.dirCache.FlushDir(srcPath)
+	f.dirCache.FlushDir(dstPath)
+
+	return nil
+}
+
 // List lists a directory
 func (f *Fs) List(ctx context.Context, dir string) (fs.DirEntries, error) {
 	dirID, err := f.dirCache.FindDir(ctx, dir, false)